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DISCRETE SEMICONDUCTORS
DATA SHEET
book, halfpage
MBD127
BZA800AL series Quadruple ESD transient voltage suppressor
Product specification 2002 Jan 11
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
FEATURES * ESD rating >8 kV contact discharge, according to IEC1000-4-2 * SOT353 (SC-88A) surface mount package * Common anode configuration. APPLICATIONS * Computers and peripherals * Audio and video equipment * Communication systems. DESCRIPTION Monolithic transient voltage suppressor diode in a five lead SOT353 (SC-88A) package for 4-bit wide ESD transient suppression. MARKING TYPE NUMBER BZA856AL BZA862AL BZA868AL MARKING CODE M1 M2 M3
handbook, halfpage5
BZA800AL series
PINNING PIN 1 2 3 4 5 cathode 1 common anode cathode 2 cathode 3 cathode 4 DESCRIPTION
4 1 3 2 4 5
1
2
3
MGT580
Fig.1 Simplified outline (SOT353) and symbol.
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL Per diode IZ IF IFSM Ptot PZSM working current continuous forward current total power dissipation non repetitive peak reverse power dissipation: BZA856AL BZA862AL BZA868AL Tstg Tj Notes 1. DC working current limited by Ptot(max). 2. Device mounted on standard printed-circuit board. storage temperature junction temperature Tamb = 25 C Tamb = 25 C Tamb = 25 C; note 2; see Fig.5 square pulse; tp = 1 ms; see Fig.3 - - - -65 - 16 15 14 +150 150 W W W C C - - - - note 1 200 4 300 mA mA A mW PARAMETER CONDITIONS MIN. MAX. UNIT
non-repetitive peak forward current tp = 1 ms; square pulse
2002 Jan 11
2
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
THERMAL CHARACTERISTICS SYMBOL Rth j-a Rth j-s PARAMETER thermal resistance from junction to ambient CONDITIONS all diodes loaded
BZA800AL series
VALUE 410 200 185
UNIT K/W K/W K/W
thermal resistance from junction to solder point; one diode loaded note 1 all diodes loaded
Note 1. Solder point of common anode (pin 2). ELECTRICAL CHARACTERISTICS Tj = 25 C unless otherwise specified. SYMBOL VF IR PARAMETER forward voltage reverse current BZA856AL BZA862AL BZA868AL VZ working voltage BZA856AL BZA862AL BZA868AL rdif differential resistance BZA856AL BZA862AL BZA868AL SZ temperature coefficient BZA856AL BZA862AL BZA868AL Cd diode capacitance BZA856AL BZA862AL BZA868AL IZSM non-repetitive peak reverse current BZA856AL BZA862AL BZA868AL tp = 1 ms; Tamb = 25 C - - - - - - 2.2 2.1 2 A A A f = 1 MHz; VR = 0 - - - - - - 125 105 90 pF pF pF IZ = 1 mA - - - 0.3 1.6 2.2 - - - mV/K mV/K mV/K IZ = 1 mA - - - - - - 400 300 200 VR = 3 V VR = 4 V VR = 4.3 V IZ = 1 mA 5.32 5.89 6.46 5.6 6.2 6.8 5.88 6.51 7.14 V V V - - - - - - 1 000 500 100 nA nA nA CONDITIONS IF = 200 mA - MIN. - TYP. MAX. 1.3 UNIT V
2002 Jan 11
3
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
BZA800AL series
handbook, halfpage
10
MLD790
102 handbook, halfpage PZSM (W)
MLD791
IZSM (A) BZA856AL
BZA856AL BZA862AL 1 BZA868AL 10 BZA862AL BZA868AL
10-1 10-2
10-1
1
tp (ms)
10
1 10-2
10-1
1
tp (ms)
10
PZSM = VZSM x IZSM. VZSM is the non-repetitive peak reverse voltage at IZSM.
Fig.3 Fig.2 Maximum non-repetitive peak reverse current as a function of pulse time.
Maximum non-repetitive peak reverse power dissipation as a function of pulse duration (square pulse).
handbook, halfpage
120 Cd
MLD792
handbook, halfpage
400
MLD793
(pF) 80
Ptot (mW) 300
200 BZA856AL 40 BZA862AL BZA868AL 100
0 0 2 4 6 VR (V) 8
0 0 50 100 Tamb (C) 150
Tj = 25 C; f = 1 MHz.
Fig.4
Diode capacitance as a function of reverse voltage; typical values.
Fig.5 Power derating curve.
2002 Jan 11
4
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
BZA800AL series
handbook, full pagewidth
ESD TESTER RZ CZ
450
RG 223/U 50 coax
10x ATTENUATOR note 1
DIGITIZING OSCILLOSCOPE 50
IEC 61000-4-2 network CZ = 150 pF; RZ = 330
1/4 BZA800AL
Note 1: attenuator is only used for open socket high voltage measurements
vertical scale = 100 V/div horizontal scale = 50 ns/div
BZA868AL
vertical scale = 5 V/div horizontal scale = 50 ns/div
BZA862AL
BZA856AL GND unclamped +1 kV ESD voltage waveform (IEC 61000-4-2 network) clamped +1 kV ESD voltage waveform (IEC 61000-4-2 network)
GND GND
vertical scale = 100 V/div horizontal scale = 50 ns/div
vertical scale = 5 V/div horizontal scale = 50 ns/div
unclamped -1 kV ESD voltage waveform (IEC 61000-4-2 network)
clamped -1 kV ESD voltage waveform (IEC 61000-4-2 network)
MLD794
Fig.6 ESD clamping test set-up and waveforms.
2002 Jan 11
5
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
APPLICATION INFORMATION Typical common anode application
BZA800AL series
A quadruple transient suppressor in a SOT353 (SC88A) package makes it possible to protect four separate lines using only one package. A simplified example is shown in Fig 7.
handbook, full pagewidth
keyboard, terminal, printer, etc.
I/O
A B C D FUNCTIONAL DECODER
BZA800AL GND
MLD795
Fig.7 Computer interface protection.
Device placement and printed-circuit board layout Circuit board layout is of extreme importance in the suppression of transients. The clamping voltage of the BZA800AL is determined by the peak transient current and the rate of rise of that current (di/dt). Since parasitic inductances can further add to the clamping voltage (V = L di/dt) the series conductor lengths on the printed-circuit board should be kept to a minimum. This includes the lead length of the suppression element. In addition to minimizing conductor length the following printed-circuit board layout guidelines are recommended: 1. Place the suppression element close to the input terminals or connectors 2. Keep parallel signal paths to a minimum 3. Avoid running protection conductors in parallel with unprotected conductors 4. Minimize all printed-circuit board loop areas including power and ground loops 5. Minimize the length of the transient return path to ground 6. Avoid using shared transient return paths to a common ground point.
2002 Jan 11
6
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
PACKAGE OUTLINE Plastic surface mounted package; 5 leads
BZA800AL series
SOT353
D
B
E
A
X
y
HE
vMA
5
4
Q
A
A1
1
e1 e
2
bp
3
wM B detail X Lp
c
0
1 scale
2 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 1.1 0.8 A1 max 0.1 bp 0.30 0.20 c 0.25 0.10 D 2.2 1.8 E (2) 1.35 1.15 e 1.3 e1 0.65 HE 2.2 2.0 Lp 0.45 0.15 Q 0.25 0.15 v 0.2 w 0.2 y 0.1
OUTLINE VERSION SOT353
REFERENCES IEC JEDEC EIAJ SC-88A
EUROPEAN PROJECTION
ISSUE DATE 97-02-28
2002 Jan 11
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Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
DATA SHEET STATUS DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2) Development DEFINITIONS
BZA800AL series
This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A.
Preliminary data
Qualification
Product data
Production
Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. DEFINITIONS Short-form specification The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. DISCLAIMER(2)S Life support applications These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
2002 Jan 11
8
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
NOTES
BZA800AL series
2002 Jan 11
9
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
NOTES
BZA800AL series
2002 Jan 11
10
Philips Semiconductors
Product specification
Quadruple ESD transient voltage suppressor
NOTES
BZA800AL series
2002 Jan 11
11
Philips Semiconductors - a worldwide company
Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
(c) Koninklijke Philips Electronics N.V. 2002
SCA74
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
613514/01/pp12
Date of release: 2002
Jan 11
Document order number:
9397 750 09173

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